it hurts to see such a great villain like pain be turned to such a joke to be honest.
Like I said, not everyone will like it. Even I have to admit it isn't perfect by any means and compared to other media versions like the video games (Storm 2), it lacks the omnipotent feelings that Pain once gave off.
Pain is an amazing villain, one that so many have claimed was the "last great battle" of Naruto Shippuden.
It all depends upon how you see a character, and that is the reason most people won't like it, people have been hyped to see this guy in the anime for YEARS, and to see him get animation like that is not exactly faithful to his manga counterpart, but then again, maybe it makes sense for a character as interesting as Pain to take this direction. Once again, no one has the same opinion on a subject, and I acknowledge this with a very open mind.